MCU: NRF52840 with 2MB FLASH and 256kB RAM for efficient processing and storage capabilities. Supports multiple bus protocols including UART, SPI, TWI, PDM, I2S, and QSPI for versatile connectivity options. Wireless communication capabilities with Bluetooth 5, Thread Bluetooth Mesh, ANT, 802.15.4, and Zigbee for seamless integration in smart environments. Expandable BME280 digital humidity, pressure, and temperature sensor for accurate environmental monitoring. L76K Multi-System Positioning GNSS Module supporting GPS/GLONASS/QZSS for precise location tracking. Global frequency coverage from 400~520 MHz and 830~945 MHz. The device features a 1.54-inch SPI e-ink screen with a resolution of 200x200 and refresh times of 2 seconds. The Plus version includes features such as BHI260AP IMU, a vibrations motor, a 2400mAh battery, and a buzzer for enhanced functionality. Color: As Shown Material: ABS Specification: 433MHz Package Contents: 1* T-Echo Plus L76K LoRa Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.